Balancing bathochromic shift and narrowband emission remains a long-standing bottleneck for multiple resonance (MR) emitters, especially for indolocarbazole (ICz)-based systems with limited spectral tunability. Herein, the study proposes a synergistic regional aromaticity (SRA) strategy that harmonically integrates localized and delocalized aromaticity to address this trade-off, enabling the construction of high-performance green-emitting ICz derivatives. The target molecules are constructed by